Inventor/Qt/SoQtComponent.h

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**=======================================================================*/
/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/


#ifndef _SO_QT_COMPONENT_
#define _SO_QT_COMPONENT_

#include <Inventor/Qt/OivQtCompat.h>

#include <QString>
#include <QPointer>

#include <Inventor/Qt/SoQt.h>
#include <Inventor/Gui/SoGuiComponent.h>

#include <Inventor/SbBasic.h>
#include <Inventor/SbString.h>
#include <Inventor/SbDict.h>

#if defined(__APPLE__)
# undef Display
#endif

class SoQtComponent;

typedef void SoQtComponentCB( void* userData, SoQtComponent* comp );

class  SoQtComponent : public QObject
{
  Q_OBJECT

    public:

  virtual void show();

  virtual void hide();

  SbBool isVisible();

  virtual QWidget* getWidget() const { return _baseWidget; }

  SbBool isTopLevelShell() const { return m_guiComponent->isTopLevelShell(); }

  QWidget* getShellWidget() const { return m_guiComponent->isTopLevelShell() ? parentWidget : NULL; }

  QWidget* getParentWidget() const { return parentWidget; }

  void setSize( const SbVec2s& size );

  SbVec2s getSize();
  virtual SbBool setFullScreen( const SbBool enable );

  SbBool isFullScreen( void ) const;

  void setFullScreenEnable( const SbBool enable );

  SbBool isFullScreenEnable(void) const;

  inline SbGlContextHelper::Display getDisplay();

  void setTitle( const char* newTitle );

  void setTitle( const SbString& newTitle );

  void setTitle( const QString& newTitle );

  const QString getTitle() const;

  void setIconTitle( const QString& newIconTitle );

  const QString getIconTitle() const;

  static SoQtComponent* getComponent( QWidget* widget );

  SbString getWidgetName() const;

  SbString getClassName() const;

  SbString    helpFileName;

#ifdef _WIN32

  UINT                helpContextID;
#endif

  void setWindowCloseCallback( SoQtComponentCB* func, void* data = NULL )
  { m_windowCloseFunc = func; m_windowCloseData = data; }


 private:

  virtual ~SoQtComponent();

  void setFullScreenOn( SbBool enable ) { m_guiComponent->setFullScreen( enable ); };

  static void finish();

  SoGuiComponent* getGuiComponent() const;

Q_SIGNALS:
#ifndef HIDDEN_FROM_DOC
  void visibilityChanged(SbBool visible);
#endif // HIDDEN_FROM_DOC

 private:

  SoQtComponent( QWidget* parent = NULL,
                 const char* name = NULL,
                 SbBool buildInsideParent = TRUE,
                 SbBool sync = TRUE );

  SoQtComponent( QWidget* parent,
                 const char* name,
                 SbBool buildInsideParent,
                 SbBool sync,
                 SoGuiComponent* guiComponent );

  void setBaseWidget( QWidget* w );

  void setClassName( const char* n ) { m_guiComponent->setClassName( n ); }

  virtual void  afterRealizeHook();

  //First realize state
  SbBool firstRealize;

  virtual SbString  getDefaultWidgetName() const;
  virtual SbString  getDefaultTitle() const;
  virtual SbString  getDefaultIconTitle() const;

  //
  // Register widget - should be called by subclasses after
  // they have created their top most widget (which is passed here),
  // and before they build any child widgets. Calling this method
  // ensures that the widgets name and class will be used when
  // calls are made to get X resource values for this widget.
  //
  // *** NOTE ***
  // ALL subclasses should register their top most widget within the
  // component, whether they retrieve resources or not, so that children
  // widgets can get X resources properly.
  // Unregister the widget when the widget is destroyed.
  //
  void registerWidget( QWidget* w );
  void unregisterWidget( QWidget* w );

#ifdef _WIN32
  // Utility function to setup logical color palette for 8bit devices
  static HPALETTE _setupColorPalette( HDC );
#endif //_WIN32

  virtual bool eventFilter( QObject* object,QEvent *event );
  //
  // This method can be used by subclasses to open a component help
  // card. The name of the file should be supplied withought a path
  // name. By default the file will be searched using:
  // 1) current working directory
  // 2) SO_HELP_DIR environment variable
  // 3) /usr/share/help/Inventor
  // 4) else bring a no help card found dialog
  //
  void openHelpCard( const char* cardName );

  static void windowCloseActionCB( SoWidget widget, SoQtComponent* p, void* data );

 private:
#ifdef _WIN32
    const char* buildHelpPath( const char* filename );
#endif
   void constructorCommon( QWidget* parent, const char* name, SbBool buildInsideParent, SbBool sync );

  //Implementation class for SoXxComponent
  SoGuiComponent* m_guiComponent;

  SbBool createdShell; // TRUE if we created that toplevel shell
  QWidget* parentWidget; // topLevel shell if in its own window
  QPointer<QWidget> _baseWidget; // returned by getWidget()

  SbVec2s size; // size of the '_baseWidget' and 'shell' (if toplevel)

  // The widget dictionary maps widgets to SoXtComponents. It's used
  // by getComponent(), and kept up to date by registerWidget().
  static SbDict* widgetDictionary;

  // For fullscreen mode.
  SbBool  wasTopLevel;

  QWidget* m_oldParentWidget;
  QRect m_oldGeometry;
  int m_widgetIndex;

  // Window close action data
  SoQtComponentCB* m_windowCloseFunc;
  void* m_windowCloseData;
};

// Inline routines
 SbGlContextHelper::Display
SoQtComponent::getDisplay()
{
  return SoQt::getDisplay();
}

inline const QString
SoQtComponent::getTitle() const
{
  return QString::fromUtf16( m_guiComponent->getTitle().toUtf16() );
}

inline const QString
SoQtComponent::getIconTitle() const
{
  return QString::fromUtf16( m_guiComponent->getIconTitle().toUtf16() );
}

inline SbString
SoQtComponent::getClassName() const
{
 return m_guiComponent->getClassName();
}

inline SbString
SoQtComponent::getWidgetName() const
{
 return m_guiComponent->getWidgetName();
}

#endif // _SO_QT_COMPONENT_

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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